> On Oct 28, 2020, at 8:43 AM, Bertrand Marquis <bertrand.marq...@arm.com> > wrote: > > > >> On 27 Oct 2020, at 22:44, Stefano Stabellini <sstabell...@kernel.org> wrote: >> >> On Mon, 26 Oct 2020, Bertrand Marquis wrote: >>> When a Cortex A57 processor is affected by CPU errata 832075, a guest >>> not implementing the workaround for it could deadlock the system. >>> Add a warning during boot informing the user that only trusted guests >>> should be executed on the system. >>> An equivalent warning is already given to the user by KVM on cores >>> affected by this errata. >>> >>> Also taint the hypervisor as unsecure when this errata applies and >>> mention Cortex A57 r0p0 - r1p2 as not security supported in SUPPORT.md >>> >>> Signed-off-by: Bertrand Marquis <bertrand.marq...@arm.com> >>> --- >>> SUPPORT.md | 1 + >>> xen/arch/arm/cpuerrata.c | 13 +++++++++++++ >>> 2 files changed, 14 insertions(+) >>> >>> diff --git a/SUPPORT.md b/SUPPORT.md >>> index 5fbe5fc444..f7a3b046b0 100644 >>> --- a/SUPPORT.md >>> +++ b/SUPPORT.md >>> @@ -38,6 +38,7 @@ supported in this document. >>> ### ARM v8 >>> >>> Status: Supported >>> + Status, Cortex A57 r0p0 - r1p2, not security supported (Errata 832075)
I think this should be: 8<— Status, Cortex A57 r0p0-r1p1: Supported, not security supported For the Cortex A57 r0p0 - r1p1, see Errata 832075. —>8 -George